Awful, although I really don't think you can plausibly argue that Euromaidan forces are much better, given that they don't seem to have much of a problem burning people alive.
I don't see how you can possibly draw such a conclusion from the article you provided:
Clearly, not only were these not "helpless" civilians, which, while I understand you never said such a thing, changes the facts of the matter considerably, but it is stated that the "Euromaidan forces" you object to made an effort to rescue the people inside the building, the presumed people who has been shooting to them beforehand. And, of course, nowhere in the article does it mention that they intended to burn these people to death. I mean, I am at a loss here. How do you read this and conclude "they don't have much of a problem burning people alive"?